Ontario, OR: April

30 April 2026: April 2026 averaged 50.4°F in Ontario, OR, the coldest April since 2023, tied 29th coldest of 71 (with 1979).

April 2026

Mean temperature: 50.4°F; Coldest since 2023; 29th coldest of 71
Precipitation: 2.55 in; Wettest since 1978; 2nd wettest of 78

A normal April in Ontario, OR (1991 to 2020): 0.70 in of precipitation, between 0.20 in and 1.20 in in eight years of ten.

The mean temperature of every April in Ontario, OR since 1946: 50.4°F in 2026; the lowest is 45.6°F, in 2011 and 1975.

Every year, ranked, as a table

Every April in Ontario, OR from 1946 to 2026, ranked: the mean temperature, the mean high and the mean low from the warmest, the precipitation from the wettest; a year missing more than a tenth of its days is not ranked.

Year	Mean, °F	Rank	High, °F	Rank	Low, °F	Rank	Precipitation, in	Rank	Days missing
2026	50.4	42	63.8	46	36.9	38	2.55	2	0
2025	52.6	21	66.5	26	38.7	12	0.12	71	0
2024	53	15	66.6	23	39.4	7	0.94	24	0
2023	50.2	44	63.2	50	37.2	28	1.05	18	0
2022	47.9	65	61.4	62	34.3	69	0.91	25	0
2021	52.8	17	69.4	10	36.3	48	0.19	66	0
2020	53.7	10	68.9	11	38.6	15	0.30	58	0
2019	55.1	3	66.4	29	43.8	1	1.51	6	0
2018	52.7	18	66.3	30	39	9	0.59	40	0
2017	50.5	41	62.2	55	38.7	12	1.14	13	0
2016	56	1	71	5	41	3	0.46	48	0
2015	51.8	30	66.6	23	37.1	32	0.50	45	0
2014	51.3	36	65.3	37	37.3	26	1.13	14	0
2013	52	27	65.5	34	38.4	17	0.21	64	0
2012	52.4	22	66.7	22	38.2	20	1.19	11	0
2011	45.6	70	57.8	71	33.5	74	0.33	55	0
2010	48.2	62	61.4	62	35	66	1.07	16	0
2009	50.9	40	64.8	43	36.9	38	0.11	75	0
2008	45.9	68	60.2	69	31.5	77	0.17	67	0
2007	51.4	34	65.5	34	37.2	28	0.55	41	0
2006	51.6	32	64.3	45	38.8	10	1.62	5	0
2005	50.2	44	63.5	48	37	35	0.50	45	0
2004	53.7	10	67.8	19	39.7	6	0.70	34	0
2003	50.1	47	62.4	54	37.8	22	1.09	15	0
2002	51.3	36	65.1	39	37.6	24	0.86	27	0
2001	48.8	57	61.4	62	36.2	50	0.46	48	1
2000	54.4	5	68.3	16	40.5	4	0.63	38	0
1999	48.8	57	61.8	59	35.7	55	0.07	76	0
1998	49.6	52	62.2	55	37.1	32	0.89	26	0
1997									22
1996	50.1	47	65	40	35.5	60	1.19	11	2
1995			63	52			0.70	34	5
1994	53.8	9	68	18	39.4	7	0.75	32	1
1993					37	35			6
1992					38.5	16	1.23	9	6
1991	49.2	55	63.4	49	35.7	55	1.00	20	3
1990					41.3	2	1.30	8	5
1989					38.2	20	0.35	53	5
1988					37.1	32	0.84	29	7
1987					38.8	10	0.45	50	7
1986					35.6	58	0.55	41	5
1985	54	7	70.8	7	37.2	28	0.52	44	0
1984	48.3	61	60.7	68	36	52	0.55	41	1
1983	48.1	63	61.6	61	34.7	68	0.64	37	0
1982	46.6	67	61	65	32.6	76	0.40	51	1
1981	52.1	26	66.6	23	37.5	25	0.35	53	0
1980	53.7	10	69.7	9	37.7	23	0.50	45	0
1979	50.4	42	64.9	41	35.8	54	0.26	61	0
1978	50.2	44	62.1	58	38.4	17	2.69	1	0
1977	55.3	2	73.9	1	37.3	26	0.03	77	1
1976	49.6	52	63.8	46	35.4	62	0.84	29	0
1975	45.6	70	57.4	72	33.9	73	0.95	23	0
1974	51.4	34	66.1	31	36.7	42	0.12	71	0
1973	51	39	66.5	26	35.5	60	0.33	55	0
1972	49.8	51	64.4	44	35.2	64	0.17	67	0
1971	52.2	24	67.5	20	36.8	40	0.22	62	0
1970	45.8	69	60.9	67	30.8	78	0.16	69	0
1969	52.7	18	68.6	14	36.8	40	0.74	33	0
1968	50	49	65.7	33	34.2	70	0.22	62	0
1967	46.7	66	59.3	70	34.1	71	1.32	7	0
1966	52.2	24	71	5	33.5	74	0.12	71	0
1965	54.4	5	68.7	12	40.1	5	1.06	17	1
1964	50	49	64.9	41	35	66	0.80	31	0
1963	48.9	56	61.7	60	36	52	1.84	4	0
1962	54.9	4	73.2	2	36.5	44	0.39	52	0
1961	51.5	33	66.5	26	36.5	44	0.12	71	0
1960	52.4	22	68.1	17	36.7	42	0.27	60	0
1959	53.9	8	71.8	3	36.1	51	0.15	70	0
1958	49.4	54	63.2	50	35.7	55	1.89	3	0
1957	52	27	65.3	37	38.7	12	1.20	10	0
1956	53.5	13	71.4	4	35.6	58	0.20	65	0
1954	51.2	38	65.9	32	36.5	44	0.61	39	0
1953	48.8	57	62.2	55	35.3	63	1.05	18	0
1952	53	15	68.7	12	37.2	28	0.65	36	0
1951	52.7	18	68.4	15	37	35	0.86	27	0
1950	48.4	60	62.7	53	34.1	71	0.28	59	0
1949	53.5	13	70.6	8	36.4	47	0.02	78	0
1948	48.1	63	61	65	35.1	65	0.97	22	0
1947	51.9	29	65.4	36	38.3	19	0.98	21	0
1946	51.7	31	67.1	21	36.3	48	0.32	57	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2016	56
1977	55.3
2019	55.1
1962	54.9
2000	54.4
1965	54.4
1985	54
1959	53.9
1994	53.8
2020	53.7
More years share the last value

Coldest
Year	Mean, °F
2011	45.6
1975	45.6
1970	45.8
2008	45.9
1982	46.6
1967	46.7
2022	47.9
1983	48.1
1948	48.1
2010	48.2

Wettest
Year	Precipitation, in
1978	2.69
2026	2.55
1958	1.89
1963	1.84
2006	1.62
2019	1.51
1967	1.32
1990	1.30
1992	1.23
1957	1.20

Driest
Year	Precipitation, in
1949	0.02
1977	0.03
1999	0.07
2009	0.11
2025	0.12
1974	0.12
1966	0.12
1961	0.12
1959	0.15
1970	0.16

The hottest, coldest and wettest days

Hottest day: 78°F; 21 April 2026, 20 April 2026
Coldest night: 27°F; 17 April 2026
Wettest day: 0.70 in; 12 April 2026

Every month, season and year

Months

Seasons

Years

Ontario, OR the day's answers

All-time records

Every answer in words

April 2026 brought 2.55 in of precipitation in Ontario, OR, the wettest April since 1978 (1993 excluded: 15 of 30 days missing; 1997 excluded: 22 of 30 days missing), 2nd wettest of 78.
The hottest day of April 2026 in Ontario, OR: 78°F on Tuesday 21 April 2026 and Monday 20 April 2026.
The coldest night of April 2026 in Ontario, OR: a low of 27°F on Friday 17 April 2026.
The wettest day of April 2026 in Ontario, OR: 0.70 in on Sunday 12 April 2026.